RESTRUCTURING COSTS (Tables)

9 Months Ended

Jul. 31, 2017

Restructuring and Related Activities [Abstract]

Activity and balance of the restructuring liability accounts

The following table sets forth the restructuring activity and balance of the restructuring liability accounts for the nine months ended July 31, 2017 (in thousands):



	Workforce reduction				Consolidation of excess facilities				Total
Balance at October 31, 2016	$	868			$	1,970			$	2,838
Additional liability recorded	3,967			⁽¹⁾	4,907			⁽²⁾	8,874
Cash payments	(3,370		)		(2,679		)		(6,049		)
Balance at July 31, 2017	$	1,465			$	4,198			$	5,663
Current restructuring liabilities	$	1,465			$	4,198			$	5,663
Non-current restructuring liabilities	$	—			$	—			$	—


(1)	Reflects a global workforce reduction of approximately 60 employees during fiscal 2017 as part of a business optimization strategy to improve gross margin, constrain operating expense and redesign certain business processes and systems.


(2)	Reflects unfavorable lease commitments and relocation costs incurred during fiscal 2017 in connection with the facility transition from Ciena's existing research and development center located at Lab 10 on the former Nortel Carling Campus to a new campus facility in Ottawa, Canada.

The following table sets forth the restructuring activity and balance of the restructuring liability accounts for the nine months ended July 31, 2016 (in thousands):



	Workforce reduction			Consolidation of excess facilities			Total
Balance at October 31, 2015	$	591		$	688		$	1,279
Additional liability recorded	2,067			(9		)	2,058
Cash payments	(1,736		)	(316		)	(2,052		)
Balance at July 31, 2016	$	922		$	363		$	1,285
Current restructuring liabilities	$	922		$	363		$	1,285
Non-current restructuring liabilities	$	—		$	—		$	—